CN103956669A - Ground wire special for middle switch cabinet - Google Patents

Ground wire special for middle switch cabinet Download PDF

Info

Publication number
CN103956669A
CN103956669A CN201410125507.XA CN201410125507A CN103956669A CN 103956669 A CN103956669 A CN 103956669A CN 201410125507 A CN201410125507 A CN 201410125507A CN 103956669 A CN103956669 A CN 103956669A
Authority
CN
China
Prior art keywords
cylindrical aluminum
switch cabinet
ground
ground wire
middle switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410125507.XA
Other languages
Chinese (zh)
Inventor
韩爱华
耿斌
刘金刚
张晶
陈卫东
岳东东
王金峰
高健翔
张春生
张元标
李强
巩方伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201410125507.XA priority Critical patent/CN103956669A/en
Publication of CN103956669A publication Critical patent/CN103956669A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to the technical field of power grid operation devices, in particular to a ground wire special for a middle switch cabinet. The ground wire special for the middle switch cabinet is composed of a ground wire clamp, a ground annealed copper wire, an insulating operating bar and a metal head, wherein the cylindrical aluminum metal head is arranged on the top of the insulating operating bar, the insulating operating bar is connected to the cylindrical aluminum metal head in a compact pressing mode, two rows of contact holes which are corresponding in position are annularly and evenly formed in the cylindrical aluminum metal head, elastic metal ball contacts are arranged in the contact holes, a fixing hole is formed between every two adjacent contact holes of each row, protrusions corresponding to the fixing holes are arranged in a lower static contact in the middle switch cabinet, a pressing connection position connected with the ground annealed copper wire is arranged at the bottom of the cylindrical aluminum metal head, the ground terminal of the ground wire special for the middle switch cabinet is connected with the ground wire clamp, and an electricity connection terminal is connected to the cylindrical aluminum metal head through the ground annealed copper wire. Compared with a fixed type ground wire, the ground wire special for the middle switch cabinet has the advantages of being more convenient to use, clearer in grounding point and higher in safety reliability.

Description

Central switch cabinet Special grounding wire
Technical field
The present invention relates to operation of power networks equipment technical field, be specifically related to a kind of central switch cabinet Special grounding wire.
Background technology
In prior art, when circuit hanging earthing conductor, shrouding behind central switch cabinet cable vault need to be pulled down, with electrical verification rod, the exposed part of branch bar in cabinet be carried out to electrical verification, identify really after no-voltage, direct hanging earthing conductor in cable vault after feeder cabinet.
In the operating process of above-mentioned circuit hanging earthing conductor, have potential safety hazard, when outlet switch cabinet hidden danger of more times is larger, maximum potential safety hazard is gone to the wrong way interval exactly, and this can divide following two kinds of situations:
A kind of is to go to after the cabinet of another switch cubicle moving because between the cable vault's shrouding after switch cubicle and handcart without any locking device, only the screw of rear shrouding need be outwarded winding and can be opened, slightly do not note just having the danger of electric shock;
A kind of is to go to after the cabinet of another switch cubicle that is in stand-by state, open shrouding behind cable vault, experience torch is identified without after electricity, hang up earth connection, this has just caused not hanging ground-wire of this switch cubicle that turns maintenance, and switch cubicle that should not hanging earthing conductor has hung up earth connection, this just likely causes line with ground to close disconnecting link, and consequence is quite serious.
In addition, after central switch cabinet, in cable vault during hanging earthing conductor, operations staff need to get into cabinet internal wiring trackside, during this operating cost, requires great effort again.
According to the version of 10kV, 35kV middle-placed switch cabinet, cause the analysis of some problems that run in the practical operation of power transformation O&M, in the situation that not violating < < safety > >, develop central switch cabinet Special grounding wire of the present invention, improve person on duty's operating process, solve present situation more loaded down with trivial details for middle-placed switch cabinet electrical verification ground connection and the larger potential safety hazard of existence.
Summary of the invention
The invention provides the higher central switch cabinet Special grounding wire of a kind of Geng Fang of use Bian ﹑ earth point Geng Ming Que ﹑ security reliability.
Central switch cabinet Special grounding wire of the present invention is by earthing clamp, ground connection annealed copper wire, insulating bar and ferrule form, insulating bar top arranges cylindrical aluminum ferrule, insulating bar is closely crimped in cylindrical aluminum ferrule, cylindrical aluminum ferrule annular is uniform to be arranged two rankings and puts corresponding contact holes, contact holes inside arranges elastic metallic spherical contact, between two contact holes of each row, it is fixing hole, the inner setting of the lower fixed contact projection corresponding with fixing hole in central switch cabinet, cylindrical aluminum ferrule bottom arranges crimping place being connected with ground connection annealed copper wire, this Special grounding wire earth terminal is connected with earthing clamp, power connection end is connected in cylindrical aluminum ferrule by ground connection annealed copper wire.
Described cylindrical aluminum ferrule size adapts with the inner lower fixed contact size arranging of central switch cabinet.Cylindrical aluminum ferrule size is advisable just to insert in lower fixed contact.When cylindrical aluminum ferrule is inserted, projection can be combined together with fixing hole, plays fixation.
Insulating bar is closely crimped in ferrule, and its material is processed by the splendid raw material such as epoxy resin of insulation property, meets the length requirement (being greater than 0.7m) that High-Voltage Insulation and safety require, and guarantees operator safety.
During work, under car switch, fixed contact side is connected with line side, to lower fixed contact side joint can complete the ground connection to line side.
Car switch is pulled out after cabinet, and lower fixed contact side electrical verification in cabinet, after the true no-voltage of electrical verification, is used the present invention, first earth terminal wire clamp is fixed, and hand-held insulating bar pushes power connection end in lower fixed contact, can easily complete three-phase ground.
The invention has the beneficial effects as follows:
Compare with fixed earth connection, the present invention uses Geng Fang Bian ﹑ earth point Geng Ming Que ﹑ security reliability higher, when electric equipment and power circuit power failure Jian Xiu ﹑ inspection, can prevent the attack of unexpected Lai electricity ﹑ induced electricity and residual charge, guarantee the life security of operating personnel on equipment.Electrical verification point, earth point, in cabinet front side, can effectively prevent mistakenly entering charged chamber; Cylindrical aluminum ferrule contact area is large, and ground connection is better; Use insulating bar to carry out ground connection, operate safer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the present invention uses view;
In figure: 1, cylindrical aluminum ferrule; 2, contact holes; 3, fixing hole; 4, crimping place; 5, ground connection annealed copper wire; 6, earthing clamp; 7, insulating bar; 8, elastic metallic spherical contact; 9, lower fixed contact.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
As shown in Figure 1-2, central switch cabinet Special grounding wire of the present invention is by earthing clamp 6, ground connection annealed copper wire 5, insulating bar 7 and ferrule form, insulating bar 7 tops arrange cylindrical aluminum ferrule 1, insulating bar 7 is closely crimped in cylindrical aluminum ferrule 1, cylindrical aluminum ferrule 1 annular is uniform to be arranged two rankings and puts corresponding contact holes 2, contact holes 2 inside arrange elastic metallic spherical contact 8, between two contact holes 2 of each row, it is fixing hole 3, the inner setting of lower fixed contact 9 projection corresponding with fixing hole 3 in central switch cabinet, cylindrical aluminum ferrule 1 bottom arranges crimping place 4 being connected with ground connection annealed copper wire 5, this Special grounding wire earth terminal is connected with earthing clamp 6, power connection end is connected in cylindrical aluminum ferrule 1 by ground connection annealed copper wire 5.
Described cylindrical aluminum ferrule 1 size adapts with inner lower fixed contact 9 sizes that arrange of central switch cabinet.Cylindrical aluminum ferrule 1 size is advisable just to insert in lower fixed contact 9.When cylindrical aluminum ferrule 1 is inserted, projection can be combined together with fixing hole 3, plays fixation.
Insulating bar 7 is closely crimped in cylindrical aluminum ferrule 1, and its material is processed by the splendid raw material such as epoxy resin of insulation property, meets the length requirement (being greater than 0.7m) that High-Voltage Insulation and safety require, and guarantees operator safety.
During work, lower fixed contact 9 sides are connected with line side, to lower fixed contact 9 side joints can complete the ground connection to line side.Car switch is pulled out after cabinet, and lower fixed contact 9 side electrical verifications in cabinet, after the true no-voltage of electrical verification, are used the present invention, first earth terminal are fixed with earthing clamp 6, and hand-held insulating bar 7 pushes power connection end in lower fixed contact 9, can easily complete three-phase ground.After finishing using, take out.

Claims (3)

1. a central switch cabinet Special grounding wire, by earthing clamp (6), ground connection annealed copper wire (5), insulating bar (7) and ferrule form, it is characterized in that: insulating bar (7) top arranges cylindrical aluminum ferrule (1), insulating bar (7) is closely crimped in cylindrical aluminum ferrule (1), cylindrical aluminum ferrule (1) annular is uniform to be arranged two rankings and puts corresponding contact holes (2), contact holes (2) inside arranges elastic metallic spherical contact (8), between two contact holes (2) of each row, be fixing hole (3), the inner setting of lower fixed contact (9) projection corresponding with fixing hole (3) in central switch cabinet, cylindrical aluminum ferrule (1) bottom arranges crimping place (4) being connected with ground connection annealed copper wire (5), this Special grounding wire earth terminal is connected with earthing clamp (6), power connection end is connected in cylindrical aluminum ferrule (1) by ground connection annealed copper wire (5).
2. central switch cabinet Special grounding wire according to claim 1, is characterized in that: cylindrical aluminum ferrule (1) size adapts with lower fixed contact (9) size.
3. central switch cabinet Special grounding wire according to claim 1, is characterized in that: earthing clamp (6) is batt joint ground clamp.
CN201410125507.XA 2014-03-31 2014-03-31 Ground wire special for middle switch cabinet Pending CN103956669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410125507.XA CN103956669A (en) 2014-03-31 2014-03-31 Ground wire special for middle switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410125507.XA CN103956669A (en) 2014-03-31 2014-03-31 Ground wire special for middle switch cabinet

Publications (1)

Publication Number Publication Date
CN103956669A true CN103956669A (en) 2014-07-30

Family

ID=51333917

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410125507.XA Pending CN103956669A (en) 2014-03-31 2014-03-31 Ground wire special for middle switch cabinet

Country Status (1)

Country Link
CN (1) CN103956669A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104167683A (en) * 2014-08-18 2014-11-26 国家电网公司 Armor-middle-mounted type metal sealed switch cabinet grounding device
CN107369927A (en) * 2017-08-10 2017-11-21 河北阡陌电器有限公司 A kind of central switch cabinet drop bar
CN108767510A (en) * 2018-05-24 2018-11-06 国网福建省电力有限公司龙岩供电公司 New type grounding device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2094809U (en) * 1990-09-18 1992-01-29 浑江电气安装公司 Electric distributing transformer grounding device
CN2891347Y (en) * 2005-12-26 2007-04-18 张庆康 Improved power supply plug structure
CN201222612Y (en) * 2008-07-01 2009-04-15 上海琦峰验电器有限公司 Special grounding wire for looped network cabinet
CN101944683A (en) * 2010-05-27 2011-01-12 周红斌 Electric connector with connecting latch mechanism
CN201891746U (en) * 2010-11-16 2011-07-06 成都陵川特种工业有限责任公司 Non-plug-type quick-coupled conduction connector
CN202210608U (en) * 2011-08-31 2012-05-02 河南省电力公司驻马店供电公司 Fast connecting joint special for grounding wire
CN202940509U (en) * 2012-10-19 2013-05-15 河南省电力公司周口供电公司 Dedicated grounding wire for transformer substation handcart cabinet
CN203339557U (en) * 2013-06-25 2013-12-11 江苏大全长江电器股份有限公司 Handcart type switch cabinet grounding rod
CN203871732U (en) * 2014-03-31 2014-10-08 国家电网公司 Special-purpose ground wire for built-in switch cabinet

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2094809U (en) * 1990-09-18 1992-01-29 浑江电气安装公司 Electric distributing transformer grounding device
CN2891347Y (en) * 2005-12-26 2007-04-18 张庆康 Improved power supply plug structure
CN201222612Y (en) * 2008-07-01 2009-04-15 上海琦峰验电器有限公司 Special grounding wire for looped network cabinet
CN101944683A (en) * 2010-05-27 2011-01-12 周红斌 Electric connector with connecting latch mechanism
CN201891746U (en) * 2010-11-16 2011-07-06 成都陵川特种工业有限责任公司 Non-plug-type quick-coupled conduction connector
CN202210608U (en) * 2011-08-31 2012-05-02 河南省电力公司驻马店供电公司 Fast connecting joint special for grounding wire
CN202940509U (en) * 2012-10-19 2013-05-15 河南省电力公司周口供电公司 Dedicated grounding wire for transformer substation handcart cabinet
CN203339557U (en) * 2013-06-25 2013-12-11 江苏大全长江电器股份有限公司 Handcart type switch cabinet grounding rod
CN203871732U (en) * 2014-03-31 2014-10-08 国家电网公司 Special-purpose ground wire for built-in switch cabinet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104167683A (en) * 2014-08-18 2014-11-26 国家电网公司 Armor-middle-mounted type metal sealed switch cabinet grounding device
CN107369927A (en) * 2017-08-10 2017-11-21 河北阡陌电器有限公司 A kind of central switch cabinet drop bar
CN108767510A (en) * 2018-05-24 2018-11-06 国网福建省电力有限公司龙岩供电公司 New type grounding device

Similar Documents

Publication Publication Date Title
CN103956669A (en) Ground wire special for middle switch cabinet
RU2016149181A (en) TIRE BUS
CN203871732U (en) Special-purpose ground wire for built-in switch cabinet
CN203734089U (en) Power wire coil for transformer station
CN205104766U (en) Cubical switchboard earth clamp
CN203260766U (en) Eagle-beak-shaped clamp for heavy current testing
CN204142947U (en) Secondary terminals shorting stub is used in mutual inductor test
CN203800188U (en) 10kV handcart switch cabinet bus static contact special-purpose grounding device
CN104426088A (en) Voltage transformer handcart
CN103545685A (en) Grounding method for low voltage work
CN209344606U (en) A kind of insulated type distribution transformer rack
CN203387028U (en) Shorting device for shorting current terminal
CN203312479U (en) Clamp-type grounding line with electroscopes
CN207036909U (en) A kind of rod-type JP cabinets
KR101485148B1 (en) Connector for transmitting incoming line of special high voltage substation facilities
CN202423601U (en) Waterproof quick insertion and extraction type low-voltage cable connector
CN206041016U (en) Practical earth connection in indoor GIS terminal
CN205385160U (en) Portable electrification of ground wire alarm device that connects
CN205429212U (en) High crimping ground wire device
CN201118108Y (en) High-voltage cable connector earthing element
CN205304189U (en) Electric field high tension cable upper column system
CN203178317U (en) Metal drew string type clamp for switch cabinet test
CN112038793B (en) Grounding fitting, grounding device and transformer
CN112038794B (en) Grounding fitting, grounding device and transformer
CN203813218U (en) Zero-line longitudinally arranged switch cabinet

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20140730